AJOR  Vol.1 No.2 , June 2011
Visualizing Investment Decision on Decision Balls
Author(s) Li-Ching Ma*
ABSTRACT
Decision makers’ choices are often influenced by visual background information. This study uses open-ended equity funds in Taiwan to investigate three well-known optimal portfolio models, including the mean-variance, maximin, and minimization of mean absolute deviation. The optimal portfolios are then visualized on Decision Balls to assist investors in making investment decisions. By observing the Decision Balls, investors can see the optimal portfolios, compare the optimal weights provided by the different models, view the cluster of funds, and even find substitute funds if preferred funds are not available.

Cite this paper
nullL. Ma, "Visualizing Investment Decision on Decision Balls," American Journal of Operations Research, Vol. 1 No. 2, 2011, pp. 57-64. doi: 10.4236/ajor.2011.12009.
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